Drawbar and bxtmper



Sap@ 239 3924,.

R. A" LQQKAR@ DRAWBAR AND BUMPER Filed May 5, 1922.

2 Sheets-Sheetv l R. A. LOCKARD DRAwBAR AND BUMPER Filed May 3, 1922 2 Sheets-Shea l 2 Patented Sept. Z3, 1924.

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BICI-IARD A. LOCKARD, OF BERWIGK. PENNSYLITANIA, ASSIGNOR TO AMERICAN GAP., ANI) FOUNDRY COMPANY, Ol? NEW YORK, N. Y., CORPRATIDN O'F NEW' JERSEY.

DRAWBA AND BUMPER.

Applcationled May 3, 1922. Serial No. 558,064.

To all whom it may concern Be it known that l, Aliiormnn A. Loom-inn, residing at Berwick, Columbia County. State of Pennsylvania, and being a citizenfof the United States, have invented certain new and useful Improvements in a Drawbar and Bumper, of which the following is a full, clear, and exact description7 such as will enable others skilled in the art to which it appertains to make and to use the same, reference being had to the accompanying drawings, which illustrate the preferred form of the invention, though it is to be `under` stood that the invention is not limited to the exact details of construction shown and described, as it is obvious that various modifications thereof within the scopeof the claims will occur to persons skilled in the art.

ln said drawings:

Fig. l is a plan view of my improved drawbar end and bumper shown applied to o-ne end of a mine car oor;

Fig. 2 is a central vertical section taken on the line 2 2 of Fig. l;

Fig. 3 is a view part in elevation and part in section taken on the line 3 3 of Fig. l;

Fig. 4 is a View similar to Fig. l of'a modified form of my device;

Fig. 5 is a central vertical section taken on the line 5 5 of Fig. 4; and

Fig. 6 is a view part in elevation and part in section taken on the line 6 6 of Fig. 4. It is an object of my invention to 'provide an improved drawbar end and bumper for mine cars which will be of simple and rugged construction and which can be readily applied to new cars or substituted for constructions now in use. o

It is also an object of my invention to provide a drawbar end and bumper of such construction that buiiing stresses will be distributed so that the stresses will be resisted by the floor as a whole thus obviating the necessity of providing a special center sill and relieving the center portion of the car floor of excessive stresses.

With these and other objects in view my invention comprises a car floor l formedof a plurality of longitudinally extending boards 2 of suitable thickness. To the center board 2 there is secured, in any desired manner, a drawbar 3 which extends. substantially, the length of the car and is connected, at its ends, by bolts or rivets 4 to a strap-like portion of a drawbar end and bumper member 6.

As shown in Figs. l, 2 and 3, the drawbar end and bumper member 6 is formed as an integral. casting comprising the strap portion 5i, a clevis portion 7 and a tapering plate portion 8 which serves as the upper flange of a channel-shaped portion having a web 9, which serves as a bufng face, and a lower flange l0, the upper and lower flanges 8 and l0 being spaced apart sufficiently to receive the ends of the boards 2 and a filler block l1. Reenforcing ribs 12 connect the strap portion 5 and clevis portion 7 and webs 13 connect the clevis portion 7 and plate portion 8. The channel-shaped portion is shaped to conform to the floor end and is of such extent as to embrace the greater part of the floor end so that the bufling stresses will be distributed to all the boards comprising the car floor. The channelshaped portion is secured to the 'floor by the bolts 14 which pass through openings in the boards 2, filler block 11, and the upper and lower flanges 8 and l0. Alined openings are formed in the clevis portion 7, upper and lower fianges 8 and l0, center board 2 and filler block 11 to receive a coupling pin (not shown).

In the modification shown in Figs. 4, 5 and 6. part of the upper flange 8 is omitted and the drawbar 3 extends from end to end of the car, engaging with web portion 9 at each end of the car. In this construction the end of the drawbar 3 lies directly under the clevis portion 7 and is provided with an. opening aligning with the opening in the clevis portion 7 to receive a coupling pin thus providing for the direct transmission from the coupling pin to the drawbar 3 of a part of the draft stresses.

What I claim is:

l. The combination of a car floor compris ing boards extending longitudinally from end to end of the car, channel-sl1aped buffer means having a tapered upper flange embracing the ends of a plurality of said boards, draft means spaced from said buffer means and formed integral with said buffer means and a drawbar connected to said means.

2. The combination with a car floor, of a buffer means adapted to distribute the bufiing stresses in said car oor comprising a channel-shaped buiiing portion embracing the end of said floor, a tapered securing` portion formed therewith and a draft member formed integral with Said batting and securing portions.

3. The combination of a oar door comprising; a plurality of longitudinal members, of a buffer means adapted to distribute the bufling' stresses in said oar floor comprising a channel-shaped portion adapted to embrace the ends of a plurality of said niembers, a plate-like portion extending from the upper flange of said channel-shaped portion, draft means secured to said plate-like portion and spaced therefrom and means for Connecting said draft means to a drawbar.

al.. A buffer means for oars comprising a casting having a Curved bufling portion having inwardly turned flanges, the upper flange being extended into a plate portion, a draft member projecting` from said plate portion,

and reinforcing walls connecting said plate portion and draft member.

5. The Combination of a ear floor composed of boa ds extending longitudinally of the car kand aV bilder means Comprising 2:3

a Casting having a channel-shaped portion embracing the ends of a plurality Vof said boards, a plate portion extending fromV the upper {iange of said channel-shapedportion, a draft member projecting upwardly 30 RICHARD A. LOCKARD.

vWitnesses:

I. L. B. MARTZ, WV. E. BITTINBINDER. 

